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Dynamic response and localisation in strongly damaged waveguides

Submitted by Giorgio Carta on

In this paper, we investigate the formation of band-gaps and localisation phenomena in an elastic strip nearly disintegrated by an array of transverse cracks. We analyse the eigenfrequencies of finite, strongly damaged, elongated solids with reference to the propagation bands of an infinite strip with a periodic damage.

Theme Articles on Micromechanics may Interest you ——Published on Acta Mechanica Sinica

Submitted by Acta Mechanica… on

Dear everyone!

Welcome to theme articles on Micromechanics published on SCI-indexed journal http://ams.cstam.org.cn.

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Theme Articles on Micromechanics

Guest editors: Qi-Chang He, Geng-Kai Hu

               

Could you tell me know which criteria if satisfied, the abaqus give this error "one of your elements distorted excessively"?

Submitted by Dincoz on

For test reasons of abaqus work, I have defined my material properties (stress-strain behaviour) up to strains of 15! However, even in this condition some of my elements reaches this strain value and distorted. I want to know which calculation the abaqus software is using to report a distortion error? 

Actually can we define our material behaviour in a way that, it would not distorted at all?

 

Best

 

Friends of Extreme Mechanics Letters

Submitted by Zhigang Suo on

When I traveled in China in June, I was once again irritated by the Internet.  It was often slow and broken.  Many important services are inaccessible, blocked by someone.  Why would someone do that?

But I found my Chinese colleagues extremely well interconnected.  Everyone has a cell phone.  They actually use their cell phones!  

Shanghai University Overseas Job Fair

Submitted by jqzhang on

Shanghai university launched a new recruitment program (see attached file), which aims to recruit top global talents. Both full time and part time applications are welcome.

People from mechanics and related fields, who are interested in the program, are kindly invited to send me an email (jqzhang2 [at] shu.edu.cn (jqzhang2[at]shu[dot]edu[dot]cn)).